package p2;
import java.util.*;

public class YMD {
private int year ,month,day;
public static void main(String args[]) {
}
public YMD(int y, int m, int d) {
	year=y;
	month= (((m>=1)&&(m<= 12))? m:1);
	day=(((d>=1)&&(d<=31))? d:1); 
}
public YMD(){ 
this(0,0,0); 
}
public static int thisyear(){ 
return(Calendar.getInstance().get(Calendar. YEAR)); 
}
public int year(){ 
return(year); 
}
public String toString(){ 
return(year+"-"+ month+""+ day); 
}
}